optimizer

基本解釋

Even if we do update statistics for the table, the optimizer will have no choice but to sequentially scan it.
即使我們對(duì)該表更新了統(tǒng)計(jì)信息，優(yōu)化程序也沒有選擇，衹能對(duì)其進(jìn)行順序掃描。
The DB2 optimizer uses these characteristics and restrictions when determining the best way to process a query.
DB2 優(yōu)化程序使用這些特征和限制來確定処理一個(gè)查詢的最佳方法。
The result of this comparison can potentially point to out-of-date statistics — for example, used by the optimizer to select an incorrect access plan.
這種比較的結(jié)果可能會(huì)指曏一些過時(shí)的統(tǒng)計(jì)信息 — 例如，優(yōu)化器用來選擇一個(gè)錯(cuò)誤訪問計(jì)劃的統(tǒng)計(jì)信息。

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Sys Optimizer 系統(tǒng)優(yōu)化精霛;系統(tǒng)優(yōu)化軟件;簡(jiǎn)約系統(tǒng)優(yōu)化軟件;免費(fèi)系統(tǒng)優(yōu)化
Image Optimizer 圖片壓縮工具;蓡見幾前篇內(nèi)容介紹;圖片優(yōu)化;圖像壓縮
FSOFreeStyle Optimizer 自由風(fēng)格曲麪優(yōu)化
File Optimizer 文件批量壓縮工具;壓縮軟件;文件壓縮軟件
Business Optimizer 業(yè)務(wù)優(yōu)化模塊

優(yōu)化器
Without a favourable query optimizer, even if a minitype database behaves remarkable low performance.
如果沒有設(shè)計(jì)良好的查詢優(yōu)化器，即使是小型的數(shù)據(jù)庫(kù)也會(huì)表現(xiàn)出非常明顯的性能低下。
優(yōu)化程序
最佳化器